Suggestion on applying for SET(M) online without LIUK pass yet

Hi there,

I'm planning to submit ILR SET(M) online for my partner.
I do aware LIUK pass is mandatory for this, and am already in process of getting it.
But to secure slot of SET(M) little early I need to submit online application asap.

Query is :
1) After submitted online application, are we allowed to LIUK pass number somewhere?
2) Now I've multiple LIUK slots booked for safer side, if we qualify in first time itself and am allowed to cancel the rest of bookings without any loss of fee ?

Thanks in Advance,

You should apply when all your documents are complete. Your documents must be dated before you apply online. The backlog has subsided and your approach is not advisable.

Thank you Cullinan for your prompt reply.
And any idea on my other query related to LIUK please ?
"2) Now I've multiple LIUK slots booked for safer side, if we qualify in first time itself and am allowed to cancel the rest of bookings without any loss of fee ?"